Re: [kvm-unit-tests PATCH 1/2] arm: Change text base address for 32 bit tests when running under kvmtool

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On Wed, Mar 09, 2022 at 04:21:16PM +0000, Alexandru Elisei wrote:
> The 32 bit tests do not have relocation support and rely on the build
> system to set the text base address to 0x4001_0000, which is the memory
> location where the test is placed by qemu. However, kvmtool loads a payload
> at a different address, 0x8000_8000, when loading a test with --kernel.
> When using --firmware, the default is 0x8000_0000, but that can be changed
> with the --firmware-address comand line option.
> 
> When 32 bit tests are configured to run under kvmtool, set the text base
> address to 0x8000_8000.
> 
> Signed-off-by: Alexandru Elisei <alexandru.elisei@xxxxxxx>
> ---
>  arm/Makefile.arm | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arm/Makefile.arm b/arm/Makefile.arm
> index 3a4cc6b26234..01fd4c7bb6e2 100644
> --- a/arm/Makefile.arm
> +++ b/arm/Makefile.arm
> @@ -14,7 +14,13 @@ CFLAGS += $(machine)
>  CFLAGS += -mcpu=$(PROCESSOR)
>  CFLAGS += -mno-unaligned-access
>  
> +ifeq ($(TARGET),qemu)
>  arch_LDFLAGS = -Ttext=40010000
> +else ifeq ($(TARGET),kvmtool)
> +arch_LDFLAGS = -Ttext=80008000
> +else
> +$(error Unknown target $(TARGET))
> +endif
>  
>  define arch_elf_check =
>  endef
> -- 
> 2.35.1
>

Applied to arm/queue,
https://gitlab.com/rhdrjones/kvm-unit-tests/-/commits/arm/queue

Thanks,
drew

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